Crystallization Behavior and Melting Characteristics of Isotactic Polypropylene Nucleated by a Novel Nucleating Agent

Abstract:

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The crystalline structure, morphology, and nonisothermal crystallization and melting behavior of isotactic polypropylene (iPP) with and without a novel nucleating agent containing amide group (TMC-328) were investigated with differential scanning calorimetric (DSC), polarized optical microscopy (POM) and X-ray diffraction (XRD). TMC-328 could increase the crystallization temperature and accelerate the crystallization rate of iPP. As an efficient α-form nucleating agent, the addition of TMC-328 could obviously reduce the spherulite size of iPP. There is a critical concentration of TMC-328. When the content of TMC-328 is 0.1%, iPP matrix exhibits the maximum crystallization peak temperature (123 °C) and the maximum crystallinity of 45.0%. With the content of TMC-328 increasing, crystallinity of iPP matrix decreases obviously. XRD measurements indicate that the crystal structure of the α-form of iPP is unaffected by TMC-328.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2413-2418

DOI:

10.4028/www.scientific.net/AMR.233-235.2413

Citation:

N. Xu et al., "Crystallization Behavior and Melting Characteristics of Isotactic Polypropylene Nucleated by a Novel Nucleating Agent", Advanced Materials Research, Vols. 233-235, pp. 2413-2418, 2011

Online since:

May 2011

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$35.00

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